Mr Zeng, a highly experienced gemologist, generously shares his extensive knowledge and expertise despite his busy schedule at the gem laboratory. He actively engages with the Singapore Jewellery Association and the general public. By staying abreast of the latest research and immersing himself in acclaimed gemological journals, Mr Zeng acquaints his audience with groundbreaking discoveries, such as the new geographic origins of gemstones and jadeites worldwide. He provides up-to-date information on the advancements and business implications of lab-grown diamonds. Professionals in the gems and jewellery industry, as well as gem, jadeite, and diamond enthusiasts, greatly benefit from his seminars and public talks. Undoubtedly, Mr Zeng’s engaging sharing have become an essential part of the industry, not to be missed.